Synthetic Route of 15862-30-3, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 15862-30-3, name is 3-Bromo-5-nitropyridine, molecular formula is C5H3BrN2O2, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.
Step 1 To a solution of 3-bromo-5-nitropyridine (XCV) (295 mg, 1.45 mmol) in dioxane (14 mL) was added 2-benzyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (XCVI) (420 muL, 1.89 mmol), PdCl2(dppf)2, (120 mg, 0.15 mmol) and 2M aqueous K3PO4 (2.2 mL, 4.36 mmol). The reaction was microwaved at 90 C. for 2 h. The reaction was cooled and the organic phase was separated, dried over MgSO4 and evaporated under vacuum. The residue was purified by silica gel column chromatography (100% hexane?6:94 EtOAc:hexane) to give 3-benzyl-5-nitropyridine (XCVII) as brown oil (117 mg, 0.54 mmol, 37% yield). 1H NMR (DMSO-d6) delta ppm 4.16 (s, 2H), 7.21-7.25 (m, 1H), 7.31-7.33 (m, 4H), 8.45-8.46 (m, 1H), 8.93 (d, J=2 Hz, 1H), 9.21 (d, J=3 Hz, 1H); ESIMS found for C12H10N2O2 m/z 215.0 (M+H).
According to the analysis of related databases, 15862-30-3, the application of this compound in the production field has become more and more popular.
Reference:
Patent; Samumed, LLC; Hood, John; Kumar KC, Sunil; Wallace, David Mark; Mittapalli, Gopi Kumar; Hofilena, Brian Joseph; Mak, Chi Ching; Bollu, Venkataiah; Eastman, Brian; US2015/266825; (2015); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem